<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
// 1.引入echarts
import echarts from "echarts";
import _ from 'lodash'

export default {
  data() {
    return {
      // 需要合并的数据
      options: {
        title: {
          text: "用户来源"
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            label: {
              backgroundColor: "#E9EEF3"
            }
          }
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: "value"
          }
        ]
      }
    };
  },
  // 此时页面上的元素已经被渲染完毕了
  mounted() {
    // 3.初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));
    this.$http.get('reports/type/1').then(res=>{
        var res = res.data
        if(res.meta.status !== 200){
            return this.$message.error('获取折线图数据失败')
        }

        // 4.准备数据和配置项
        const result = _.merge(res.data,this.options)
        console.log(res.data)

         // 5. 展示数据
        myChart.setOption(result)
    })

   

    
  }
};
</script>

<style lang="scss" scoped>
</style>